CVE-2026-44959

Revive · Adserver

Revive Adserver 6 is susceptible to a vulnerability involving improper validation of user input when saving delivery limitations, potentially allowing for unauthorized system modifications.

Executive summary

A high-severity input validation flaw in Revive Adserver 6 could allow authenticated users to compromise the integrity of ad delivery configurations.

Vulnerability

This vulnerability occurs due to a failure to properly sanitize input when managing delivery limitations within the application. An authenticated user may exploit this failure to inject malicious data, potentially affecting the logic of the ad server.

Business impact

The impact of this vulnerability includes the potential for unauthorized data modification and the disruption of legitimate advertising services. With a CVSS score of 8.8, this flaw represents a high risk to business continuity and data integrity, as it allows for the manipulation of critical ad-serving parameters.

Remediation

Immediate Action: Apply the latest security patches released by the vendor to remediate the input validation vulnerability.

Proactive Monitoring: Continuously monitor the application for suspicious administrative activity and audit configuration changes made to delivery limitations for anomalies.

Compensating Controls: Utilize WAF rules to sanitize or block potentially malicious input payloads directed at the application's configuration endpoints.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Security teams should ensure that all Revive Adserver instances are updated to the current secure version immediately. Restrict administrative privileges to the minimum required level to mitigate the risk of an authenticated user leveraging this vulnerability to compromise the system.